Strange Imp Forum Login Issue

When I log into imp forums from here:
https://plan.electricimp.com/login

I get an error message on a blank white screen: Not Found

This is the URL address in my address bar when that happens …
https://plan.electricimp.com/ide

If I backspace back to erase “/ide” and click enter, it opens the planner just fine.

This happens on both FireFox and Chrome, and on all PC’s that I have used.

Anyone else have this issue?